python多版本环境控制及虚拟环境

来源：互联网发布：网贷大数据交易平台编辑：程序博客网时间：2024/06/05 08:00

python 开发的时候我们进程会遇到应为版本问题带来的困扰，以及多版本包带来的软件冲突的问题：

下面我们来使用pyenv 和Virtualenv来为各个不同项目搭建不同环境

一、pyenv安装

1、选择安装到$HOME/.pyenv目录（相对目录的问题这里就不再解释）

git clone https://github.com/yyuu/pyenv.git ~/.pyenv

2、配置环境变量

   echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile   echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile

3、重启你得当前shell使其更改生效

   exec $SHELL   source ~/.bash_profile

4、pyenv命令

[root@yl-testing-env ~]# pyenv

pyenv 1.0.10

Usage: pyenv <command> [<args>]

Some useful pyenv commands are:

   commands    List all available pyenv commands

   local       Set or show the local application-specific Python version

   global      Set or show the global Python version

   shell       Set or show the shell-specific Python version

   install     Install a Python version using python-build

   uninstall   Uninstall a specific Python version

   rehash      Rehash pyenv shims (run this after installing executables)

   version     Show the current Python version and its origin

   versions    List all Python versions available to pyenv

   which       Display the full path to an executable

   whence      List all Python versions that contain the given executable

See `pyenv help <command>' for information on a specific command.

For full documentation, see: https://github.com/pyenv/pyenv#readme

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